Electronic pressure switch SPE-M-S-3S

differentialSPDTterminal block

Power 100 ~ 220VAC 3ch Digital Pressure Switch External Sensor Structure(4-20mA) 1ch RS-485 Communication(Isolated) This product is a digitalized pressure monitoring solution designed to replace conventional mechanical pressure switches and gauges in various refrigeration and air conditioning systems. It offers enhanced functionality and operational convenience. The unit supports three pressure channels: high pressure, low pressure, and hydraulic pressure. Engineered for precise system control, it provides both pressure-based band control and PID control functions, enabling optimized management of variable-capacity compressors and inverter-driven outdoor unit fans. The sensor-separable design effectively eliminates leakage risks associated with high-pressure hoses, ensuring safe and reliable operation. Additionally, the device features a built-in high-reliability isolated communication interface, enabling real-time monitoring of sensor readings and various operational parameters for enhanced system management and diagnostics.